Home / 525,786,981.71-721,786,485.20-451,318,258.08

Finding the Fourth Proportional to 525,786,981.71, 721,786,485.20 and 451,318,258.08

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Solution

The fourth proportional to 525,786,981.71, 721,786,485.20 and 451,318,258.08 is: 619,557,787.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,786,981.71 : 721,786,485.20 = 451,318,258.08 : x
  2. Step 2: Convert to fraction form
    525,786,981.71/721,786,485.20 = 451,318,258.08/x
  3. Step 3: Cross multiply
    525,786,981.71x = 721,786,485.20 × 451,318,258.08
  4. Step 4: Simplify right side
    525,786,981.71x = 325,755,419,203,893,120
  5. Step 5: Solve for x
    x = 325,755,419,203,893,120/525,786,981.71
  6. Step 6: Final answer
    x = 619,557,787.73

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.